123k views
2 votes
Which expression completes the identity cos u cos v=

User TLE
by
7.7k points

2 Answers

1 vote
cos(u+v) = cosu.cosv - sinu.sinv and cosu.cosv= cos(u+v) + sinu.sinv
or
cos(u - v) = cosu.cosv + sinu.sinv and cosu.cosv= cos(u+v) - sinu.sinv

User Frank Myat Thu
by
8.2k points
7 votes

A is the correct answer.


User Tarps
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories